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Finding the Fourth Proportional to 359.33, 539.90 and 229.39

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Solution

The fourth proportional to 359.33, 539.90 and 229.39 is: 344.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.33 : 539.90 = 229.39 : x
  2. Step 2: Convert to fraction form
    359.33/539.90 = 229.39/x
  3. Step 3: Cross multiply
    359.33x = 539.90 × 229.39
  4. Step 4: Simplify right side
    359.33x = 123,847.66
  5. Step 5: Solve for x
    x = 123,847.66/359.33
  6. Step 6: Final answer
    x = 344.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.